docs: def update_resource_fields(self, data, data_to_add):
          """Update resource data with new fields.
  
          Args:
              data: resource data
              data_to_update: dict of data to update resource data
  
          Returnes:
              Returnes dict
          """
          for key, value in data_to_add.items():
              if not data.get(key):
                  data[key] = value
  
          return data